Rain and busy roads means drivers will have to be especially careful this long weekend.
With Queen's Birthday the last long weekend for several months thousands are expected take to the roads to make the most of a short break.
This, coupled with rain throughout Hawke's Bay and further up the North Island, will make for delays.
Acting national manager road policing, Inspector Gini Welch, said all drivers needed to be patient to ensure they, and others on the road, made it to their destinations safely.
Police will be out in force monitoring a reduced 4km/h speed threshold as well as random breath-testing and seatbelt checks.